Erratum: Statistical wave field theory: Anisotropic wave fields under Neumann’s boundary condition [J. Acoust. Soc. Am. 159(3), 2265–2280 (2026) DOI: 10.1121/10.0042450]

The original text was truncated in the published article, in the third paragraph of the second column of page 2271, above Eq. (16). The complete paragraph is: In Appendix A, the directional measure σ is characterized as follows. For all l ∊ ℕ, let Y_l denote the (2l + 1)-dimensional column vector of coefficients Y_l;m, where *m ∊ {−l; …; l}, Y_l;m denotes the real spherical harmonic of degree l and order m (Courant and Hilbert, 2004).² Then ∀l ∊ ℕ, let A_l be the (2l + 1) × (2l + 1) real symmetric positive semidefinite matrix. This paragraph is followed by Eq. (16). In addition, the original footnote text related to the footnote mark 7, in the first paragraph of the second column of page 2274, is missing in the published article. This footnote text is: To derive Eq. (35), Eq. (34) can be applied to any sequence of Schwartz functions that converges in the sense of distributions to ψ(ξ) = δ(ξ − f), so that ψ̂(τ) = e^−ı2πf^τ. Be aware that there is another footnote mark 7, in the first line of the second column of page 2279, whose footnote text was correctly included in the published article.